常村煤矿25采区运输平巷支护及快速掘进技术研究

Supporting and Fast Driving Technology of Transport Roadway in No.25 Mining Area of Changcun Coal Mine

为保障25采区运输平巷围岩的稳定,采用数值模拟软件确定锚杆的支护参数,基于模拟结果确定顶板锚杆间排距为900 mm×1000 mm,结合巷道特征具体进行支护方案设计。另外为提高巷道的掘进速度,确定巷道采用EBZ200掘锚护一体的综掘机械,并对巷道掘进施工工艺进行具体设计。结果表明:巷道在该掘进技术下,一天掘进进尺18 m,相较于普通掘进工艺速度增幅达100%,且巷道在该支护方案下,围岩变形量较小。

To ensure the stability of the surrounding rock of transportation roadway in 25 mining area,the supporting parameters of bolt are determined by numerical simulation software,and the row distance between roof bolt is determined to be 900 mm×1000 based on the simulation results mm,and the supporting scheme is designed according to the characteristics of roadway.Besides,in order to improve the tunneling speed of roadway,it is determined that the roadway adopts fully-mechanized excavation machinery with EBZ200 anchor protection,and the construction technology of roadway excavation is designed.As a result,the roadway drivage of 18 m,a day increases by 100%compared with the ordinary tunneling technology,and the deformation of surrounding rock is small under the support scheme.